Updated logic

Author: isoos

app/lib/task/backend.dart

@@ -1153,11 +1153,11 @@ PackageVersionStateInfo _authorizeWorkerCallback(
 
   final versionState = state.versions![version];
   if (versionState == null) {
-    throw NotFoundException.resource('$package/$version');
+    throw TaskAbortedException('The provided token is invalid or expired.');
   }
   // Check the secret token
   if (!versionState.isAuthorized(token)) {
-    throw AuthenticationException.authenticationRequired();
+    throw TaskAbortedException('The provided token is invalid or expired.');
   }
   assert(versionState.scheduled != initialTimestamp);
   assert(versionState.instance != null);

app/test/task/task_test.dart

@@ -784,9 +784,9 @@ void main() {
         final api = createPubApiClient(authToken: v.token);
         await expectApiException(
           api.taskUploadFinished('neon', v.version),
-          status: 404,
-          code: 'NotFound',
-          message: 'Could not find `neon/1.0.0`.',
+          status: 400,
+          code: 'TaskAborted',
+          message: 'The provided token is invalid or expired.',
         );
       }